User Manual
X45
Version 1.0/2019
Copyright © 2019 by Xicoy Electrònica S.L. All rights reserved
Page
22
WHAT TO DO IN THE CASE OF AN EMERGENCY
During the start sequence the ECU will be in charge of everything, controlling temperature and RPM. The only thing
the user can do is to abort the sequence by lowering the trim in the case that something abnormal (excessive flames
in the exhaust, etc).
If a problem is detected, first: Move the trim to the low position to abort the sequence. If there is a fire in the engine
and the problem is because the starter has failed or the engine is seized (not turning),
IMMEDIATELY APPLY THE FIRE
EXTINGUISHER
through the intake side of the engine, never through the exhaust. If there is a fire, but the rotor
remains free to spin and the starter is OK, raise the trim and stick to the full power position for 3 seconds, this will
connect the starter manually to ventilate the engine and extinguish the fire. The throttle channel acts as a starter
switch.
Adjusting the engine maximum power
The engine comes from factory adjusted for its maximum thrust. But it is possible to reduce the maximum power if
necessary. To do so, go to RUN menu and scroll the menus up to “Max RPM”. Using the + and – buttons, you can
change the rotor speed at full throttle. Beside the full power RPM, the equivalent thrust in Newton and in Lb. Please
note that these figures are calculated based on an ambient temperature of 15ºC at sea level. Hotter ambient/higher
altitude will reduce the power output.
Autorestart function
X45 engines include the AUTORESTART function. This function can quickly restart an engine automatically, but it
should be understood that such a system may cause damage to people and property if triggered inappropriately. By
default this function is disabled in the ECU, the user should expressly enable it. By enabling this function, the user
agrees that they have understood the working principles and understands its limitations.
Restart options and how to enable them:
Within the “Radio” menu, a selection defines the restart operation. The ECU offers 3 choices:
Standard operation (off):
After the shutdown the ECU should be reset (power cycled off then on) to enable
another start-up cycle. Engines are supplied in this mode from factory.
Manual restart
:
User can normally shutdown the ECU through the transmitter (by lowering the stick and trim). The
ECU will execute the normal shutdown and post run cooling cycle. Once the cooling is finished (temperature below
100ºC), the ECU will return to power-up state allowing the engine to be restarted through the normal procedure
(Trim-up, cycle stick). The time to shut down and later start is exactly the same as standard operation. This mode is
useful for gliders, where the engine is used to climb to height, shutdown, soaring, restart, climb, etc. This mode does
not pose any safety hazard besides the fact that the engine can be started inadvertently if the start procedure is
executed in the transmitter after the flight.
Auto-restart:
In particular case of a fuel bubble that momentarily stops the combustion, the ECU will detect this
condition by monitoring the rpm, temperature and pump power, and then the ECU triggers the auto-restart
sequence. This sequence is done with the engine hot, so the power is restored quickly. This restarting function can
help save the plane in few limited circumstances.
